A common strategy was to "farm" 2-star units by sending them on 18-hour explorations to earn daily crystals.
One of the most famous "interesting" moments of this episode features Sam and Dean meeting their alternate-world counterparts —wealthy, "preppy" versions of themselves who run a monster-hunting corporation. [S15E13] Destiny's Child
Characters like Pepita (Wood Attacker) and Natalus (Light Debuffer) were considered "must-haves" for endgame content. 3. Destiny's Child (The Music Group) A common strategy was to "farm" 2-star units